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WorksheetsUnit 1 Review
Total questions: 40
Worksheet time: 40mins
Mia is discussing climate change with her friends. She wants to explain what a scientific theory is. Which of the following most accurately represents a scientific theory?
a proven scientific explanation that can only be changed if backed by new scientific evidence.
a proven scientific explanation that can never be changed once made.
what doctors tell the public.
the opinions of a group of scientists talking together on a news program.
(True or False: ) Charlotte watches a documentary on TV and reads some articles on the internet. She thinks about a problem and comes to a conclusion based on what she saw and read. Is Charlotte making a scientific theory?
a. True
b. False
(True or False:) Maya is conducting a science experiment and forms a hypothesis. Will her hypothesis always be proven to be true?
True
False
(True or False:) For someone to claim something is a proven scientific fact, it must be backed by solid evidence.
true
false
(True or False) Scarlett will create her hypothesis based on the data she obtained in her experiment.
True
False
What is the independent variable? A researcher did an experiment to see if an increase in blood alcohol levels causes an increase in liver damage. Over the course of three months, mice were assigned to receive different concentrations of alcohol each day and blood tests were done to to determine how well their liver enzymes were functioning. Everything else in the experiment were purposely kept the same. All of the mice were fed the same food, exposed to the same environment, tested at the same time of day, etc. What is the independent variable?
level of liver damage detected based on the liver enzyme data
the amount of food given to each mouse
the time of day each mouse was tested
the different concentrations of alcohol assigned to each mouse
True or False: Nora wants to test if a new fertilizer helps plants grow faster. For her hypothesis to be valid, it must be testable.
True
False
Avery is learning about the five senses in science class. Which of the following is not one of the five senses Avery uses to make observations?
touch
taste
pain
smell
sight
You observe your friend walking into class with water spots on her clothing and damp hair. You heard rumbling earlier, so you make a(n) ___________ that she got rained on walking from her car.
direct observation
inference
hypothesis
scientific theory
Steps of the Scientific Method: Ricardo was walking around his garden trying to figure out what is causing his plants to die. He made some initial observations of the plants and thought possibly it has something to do with the type of fertilizer he used and figured he could set up an experiment to test different three types of fertilizers to see how they affected the plants. What step should complete next?
measure he health and growth of each plant for 21 days
draw conclusions on which fertilizer his plants grew best in
write an hypothesis on how he thinks each fertilizer type will affect his plants.
collect and organize his data in a table
True or false (CONPTT): Because science is tentative thus the earth is not flat.
True
False
(True or False:) Science can prove or disprove that God exists.
True
False
(True or False:) Isla claims that every fact and opinion she hears can be scientifically proven or disproven. Is this statement correct?
True
False
A company ran a human drug trial to gather evidence on how effective their drug is in treating high blood pressure. Which of the following facts about the trial would make it the MOST credible and valid?
trial done on 5,000 volunteers and published in a peer-reviewed journal
trial done on 21 volunteers and published on the company website
trial done on 500 volunteers and results published in the local newspaper
trial done on 12 volunteers and the results posted on instagram
Nora wants to find out if the amount of sunlight affects how fast her plant grows. When setting up her "Controlled Experiment," it is important for her to change _____ variable(s) in order to prove that the data she collects was directly caused by the changes made.
two
one
three
three or more
An ad popped on your screen boosting that it has been scientifically proven that you will lose weight and gain muscle mass if you take "Magneto Special Formulated Vitamins." Rather than take their word for it, you analyzed the four articles they said that proved their claim. Which of the following statements would be a RED FLAG, making you DOUBT how effective their bold claims that their vitamins will help you?
You found the results were published in a peer-reviewed journal called "Nature."
A controlled experiment was conducted on identical twins, where one took vitamins and the other did not.
Magneto vitamins were tested on 14 people and proven to be safe and effective.
Magneto vitamins were tested on 10,000 people in their clinical trial.
What is the independent variable in following experiment? Brittany is designing an alarm clock APP and wants to see which which alarm sound would grab people's attention the fastest, so she could set it as the "default" alarm under the settings menu. She designed an experiment testing how how fast 100 people were able to recognize and press a button upon hearing one of 10 different alarm sounds. What is her independent variable?
the type of sound played
how fast people responded when they heard each alarm
Brittany designing the APP
Grace is working on a science project. She wants to know which of the following would be considered "outside the boundaries" of what science can prove or disprove to be true.
figuring out what causes something to happen in the natural world
observing with your senses
making useful predictions
explaining how beautiful a sunset is
Evelyn is conducting an experiment to test the effect of sunlight on plant growth. She sets up two groups of plants: one group is placed in sunlight, and the other group is kept in the shade. Which of the following criteria would best describe the "Control Group" in Evelyn's experiment?
The control group lacks the changes made to the independent variable.
The control group has several changes made to the independent variable.
(True or False:) Imagine you are in Mrs. Lambert's biology class. She often checks in with you, encourages you to ask questions, and organizes fun activities to help everyone learn. Mrs. Lambert cares about you, wants you to do well in biology, and have fun learning along the way.
True
False
Noah is discussing science with his friends. He says, "Scientific theories are facts that cannot change over time." (True or false?)
True
False
Emma wants to conduct an experiment to find out why plants grow faster in sunlight. Which of the following is NOT a step she should follow in the scientific method?
Making observations
Formulating a hypothesis
Analyzing data
Forming opinions
Michael is working on a science project and needs to find the most reliable and trustworthy source for scientific information. Which of the following should he choose?
Time Magazine
Peered review Journals
Magna Comics
TikTok
Nora is working on a science experiment in her classroom. She needs to heat some water and measure its volume, so she grabs the piece of lab equipment shown in the image. What is this piece of lab equipment called?
beaker
graduated cylinder
flask
funnel
Olivia is preparing a science experiment and needs to accurately measure 200mL of vinegar. Which is the best piece of lab equipment she should use?
a beaker
a graduated cylinder
a pipette
a cup
Nora is conducting an experiment to test different brands of toilet paper. She measures how many pennies each brand can hold before breaking. In Nora's toilet paper lab, what was the dependent variable and which axis did she graph it on?
Strength in pennies, x-axis
Strength in pennies, y-axis
Brand of TP; y-axis
Brand of TP; x-axis
Scarlett is learning about the human body in her science class. She discovers that her body is made up of trillions of tiny, living units, each performing specific functions vital for her overall health and survival. Which characteristic of living things does this describe?
Living things are made up of units called cells.
Living things are based on a universal genetic code.
Living things obtain and use materials and energy.
Living things maintain a stable internal environment, called homeostasis.
Living things grow and develop.
Abigail observes a bird catching and eating a berry from a snowy branch. Which characteristic of life is supported by evidence of what the bird is doing in this scenario?
Living things obtain and use materials and energy.
Living things are made up of units called cells.
Living things reproduce.
Living things are based on a universal genetic code.
Living things respond to their environment.
Mason is visiting a wildlife museum and notices that there are many different kinds of bears, each with unique features that help them survive in their specific environments. What characteristic of living things explains why these different kinds of bears have evolved, each with special features to help them survive in their own environment?
Living things are made up of units called cells.
Taken as a group, living things change over time.
Living things obtain and use materials and energy.
Living things maintain a stable internal environment, called homeostasis.
Living things grow and develop.
When Maya walks from a dark room into bright sunlight, her pupils become smaller to let in less light. Which characteristic applies to how her pupils adjust by dilating or constricting in response to the amount of light received?
Living things are made up of units called cells.
Living things reproduce.
Living things obtain and use materials and energy.
Living things respond to their environment.
Living things grow and develop.
Noah notices that when he is outside on a hot day, he starts to sweat, and when he is outside on a cold day, he starts to shiver. Which characteristic of life does this process demonstrate?
Living things are made up of units called cells.
Living things obtain and use materials and energy.
Living things maintain a stable internal environment called homeostasis.
Living things grow and develop.
Liam is visiting a farm and sees several cute little chicks hatching from their shells. Which characteristic of living things does this process best demonstrate?
Living things are made up of units called cells.
Living things are based on a universal genetic code.
Living things obtain and use materials and energy.
Living things maintain a stable internal environment called homeostasis.
Living things grow and develop.
Hannah is learning about the characteristics of living things in science class. She notices that paper is made from trees. Based on what she has learned, Hannah classifies paper as _____________________.
nonliving
living
Avery is learning about the characteristics of living things in science class. She wonders whether the virus that causes Covid-19 is considered to be living or nonliving. Based on what you know, how should Avery classify the virus?
Living
Nonliving
Ethan has his mother's red hair and his father's dimples. Which characteristic of life does this situation best illustrate?
Living things are based on a universal genetic code.
Living things are made up of units called cells.
Living things obtain and use materials and energy.
Living things maintain a stable internal environment.
Living things grow and develop.
While hiking by a fast flowing river, Anika wonders if the river is considered living or nonliving according to the characteristics of living things. According to the characteristics of living things, a fast flowing river is classified as ___________________.
living
nonliving
Elijah is learning about the human body in science class. He discovers that the body is made up of trillions of tiny, living units, each performing specific functions vital for overall health and survival. Which characteristic of living things does this describe?
Living things are made up of units called cells.
Living things are based on a universal genetic code.
Living things obtain and use materials and energy.
Living things maintain a stable internal environment, called homeostasis.
Living things grow and develop.
David is conducting an experiment and comes up with an idea that he wants to test. (True or False:) For David's idea to be considered a scientific hypothesis, it must be testable and falsifiable.
False
True
Zoe is observing different objects in her backyard. She notices a rock, a tree, a bird, and a dog. She wants to figure out which of the following is NOT a characteristic that all living things share. Which one should she choose?
Living things can move voluntarily.
Living things are made up of cells.
Living things obtain and use energy.
Living things respond to their environment.
Kai wants to find out why plants in his garden are growing at different rates. Which step should he take first in the scientific method?
Conducting an experiment
Drawing conclusions
Making observations
Forming a hypothesis
